Ratchet-drill.



3 and collar 6 is a tension-spring 9,

TINTTIED STATES PATHN T OFFICE.

JAMES H. AIKEN, OF IN GRAM, AND THOMAS MCG. AIKEN, OF ALLEGHENY,PENNSYLVANIA.

RATCHET-DRILL.

Specification of Letters Patent. Application filed May 22, 1905. SerialNo. 261,581.

No. 843,513. Patented Feb. 5, 1907.

T0 @ZZ whom t may concern.-

similar spring 10 is seated over the squared Be it known that we, JAMESH. AIKEN and y portion 2 between the collar 8 and a brace 11, THOMASMCG. AIKEN, citizens of the United l secured to the portion 2. A sleeve12,

States, residing at Ingram and Allegheny, in formed integral with alever 13 and seated the county of Allegheny and State of Pennover thecollars 7 and S, acts as a guard to Sylvania, have invented certain newand useprevent dirt, &c., from entering the parts.

ful Improvements in Ratchet-Drills, and we l Formed integral with thecollar 5 is an do declare the following to be a full, Clear,operating-lever 14, and also integral with the and exact description olithe invention, such collar 7 is a short-arm lever 15. This'latter aswill enable others skilled in the art to 1 lever is connected by a shortlink 16 with a which it appertains to make and use the l bell-lever 17,pivoted to an extension on the same, reference being had to theaccompanylever 13, which is in turn connected by' aning drawings, and tothe letters and iigures of other short link 18 with the operating-leverreference marked thereon, which form a part 14, being pivotally attachedto the latter. A of this specification. sleeve 19 preventsdirt, &c.,from lodging The invention relates to new, novel, and around the collar6 and spring 9. useful improvements in a double-actuated The levers 13and 14 are alternately drawn and operated ratched drill, and has for itsback and forth. The movement of the lever obj ect the combination andarrangement of 14 toward the operator causes the collar 5 to partswhereby the drill head or socket is l revolve and by means of made tooperate in one continuous direction. tion with the stock causes saidstock to ro- In the accompanying drawings we have tate. The teeth of thecollar 5 mesh with illustrated our device yseveral views. the teeth ofthe collar 6, and it is such ar- Figure 1 is a view in elevation andpartly rangement that causes the lever 14 to rotate in section of thedevice; Fig. 2, a iront elethe stock in one direction. During thisvation, the ratchet means of operating the movement of the lever 14 thecollar 7, con` drill-socket being shown in the horizontal nected to theshort lever 15, rotates in a disection Fig. 3, a detached view of tworol rection opposite to that of the collars 5 and 6, tating ratchetmembers, also a view of one of and by reason of the reverse inclinationof the said members. the teeth on the collars 7 and 8 with relationNumerals of reference designate like parts to the teeth on the collars 5and 6 the collar throughout the different views, 1 being the 8 is pushedagainst the tension of the spring drill-stock, the central portionthereof being 10, and thereby the collar 8 is permitted to round and theends22made square. Secured rotate idly on the stock 1. IVhen the leverto one end of the stock is a drill-socket 3, 14 is moved in an oppositedirection, the colhaving a chambered portion to receive the lar 5 slipsidly over the collar 6 or the teeth squared end of the tool, and on theopposite thereon and the collar 7 operatively engages end is arranged adevice 4, by means of which the collar 8 through the medium of the teeththe tool may be fed to the work. Seated l thereon. By this arrangement acontinuous over the central round portion of the stock is l movement isimparted to the stock 1. The a collar 5, having angled teeth 5 formed inl' bell-lever and links cause the collar 7 to rothe outer rim. Theseteeth mesh in similar tate in a direction opposite to that of thecolangled teeth formed in a collar 6, seated over lar 5.

the square portions of the stock. A collar 7, The form of drillconstruction as described also seated over the round portion of theabove may be operated by two persons at stock, has angled teeth formedin the outside the same time. Thus a much greater force rim and made thereverse of those formed on can be utilized where the boring isdifficult. the collar 5. These teeth mesh in similar Should it bedesired to operate both the angled teeth formed on the collar 8, seatedon levers 13 and 14 jointly in the saine directhe squared portion 2 ofthe stock.' Seated I tion, they can be connected by any desired over thesquared portion 2 of the said stock means, such as the pin 20, (shown inFig. 2,) and having a bearing against the drill-socket and the sameresults will be accomplished as While a the alternating movement ofthelevers.

the tooth connec- IOO Having thus fully described our invention, what weclaim as new, and wish to secure by Letters Patent, is-

l. In combination, a stock having end portions therefor angular insection, collars on the stock, levers carried by the collars, collarsslidable on the angular portions of the stock, teeth on the slidingcollars normally engaging the teeth of the first-named collars, springsfor holding the teeth in mesh, a sleeve for the stock, a lever carriedby the sleeve and a connection between the lever of the sleeve and thelevers ofthe collars for imparting a continuous movement to the stockand means carried by the stock for holding the tool.

2. In combination, a stock, collars on the stock, levers carried by thecollars, teeth on the collars, collars slidable on the stock, teeth onthe sliding collars normally engaging the teeth of the first-namedcollars, springs for holding the teeth of the sliding collars normallyin mesh with the teeth of the irst-named collars, a sleeve Jfor thestock, a lever on the sleeve, a projection on the lever of the sleeve7 abell-lever pivoted to the projection, a lever pivoted at one end to thebell-lever and at the opposite end of one of the levers of the collarsand a lever pivoted at one end to the opposite end of the bell-lever andat the opposite end to the lever of the remaining collar and meanscarried the stock for holding the tool` In testimony whereof we aiix oursignatures in presence of two witnesses.

' JAMES H. AIKEN.

THOMAS MCG. AIKEN. Witnesses:

WM. W. POWELL, Jr., FRANK H. FULMER.

